Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 61: Neutrinoastronomie III

T 61.2: Talk

Tuesday, March 1, 2016, 17:05–17:20, VMP9 SR 08

Optimization of the IceCube neutrino sample by improving the data processing chain — •Juliane van Scherpenberg, Kai Krings, Stefan Coenders, and Andrea Turcati for the IceCube collaboration — Technische Universität München

The IceCube Neutrino Observatory found evidence for astrophysical neutrinos. However, their sources are still unknown. In order to raise the probability of detecting these sources, the data processing chain can still be optimized with regard to more efficient event selection and background retention.

For a selection of neutrino-induced muon events studies were made on the effect of applying a new coincident-event splitting algorithm at low processing levels. Furthermore the impact of using a different numerical minimizer in the low-level likelihood reconstructions was investigated. The results of these studies - including arising changes at higher levels of reconstruction - are going to be presented in this talk.